Steam-boiler.



No- 741,575. PATENTED OCT. 13, 1903 J. B. BEAM.

STEAM BOILER.

APPLICATION FILED 'JAN. 26, 1903. N0 MODEL. I 2 SHEETS-SHEET 1.

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STEAM BOILER. APPLICATION FILED JAN. 28,1903.

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PATENT OFFICE.

CHARLES W. HUGHES, 0F ELEANOR, PENNSYLVANIA.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 741,575, dated October13, 1903. Application filed January 26, 1903. Serial No. 1%,640. (Nomodel.)

To all whomit may concern.-

Be it known that I, J AOOB B. BEAM, a citizen of the United States,residing at Bigrun', in the county of J efierson and State ofPennsylvania, have invented certain new and useful Improvements inSteam-Boilers for Coke- Ovens, of which the following is aspecification.

The object of my invention is to provide cokeovens with steamboilers ofsuitable construction which will not interfere with the ordinary use ofsuch ovens and will in a lmeasure save what has heretofore been wasteeat.

In carrying out my invention I do not contemplate any change in thegeneral construction of the ovens. Indeed, I have sought to so constructsteam-boilers therefor that they may be applied to them as ordinarilyconstructed and without any change in the man- 'ner'of their operationor use.

At the manhole or filling-orifice of each oven I arrange an annularchamber or waterdrum, through the central opening of which the coal maybe introduced, and I connect this upper chamber with one or more annularwater chambers or drums below it by means of water-tubes so arranged asto provide eflicient circulation of water without interfe'ring with theintroduction of coal or the passage of gases while coking. The boilersare connected with a steam-dome, from which steam may be drawn and usedwheneverrequired. Water is introduced into the boilers by an injector orinjectors from a watersupply pipe, and suitable means are provided forblowing off steam, connecting and disconnecting a battery of boilerswith each other and with the steam-dome, and for maintaining thewater-level in a battery of boilers when one injector only is employed.

In the accompanyingdrawings, Figure 1 shows a front elevation of aportion of adjacent coke-ovens with my improvements applied. Some of theparts are broken away in order to better illustrate other parts. Fig.

2 shows a transverse section through two adjacent ovens with myimprovements applied. Fig. 3 is a detail view showing the manner ofsupporting the upper annular water-chamber at the manhole of an oven.

As beforeostated, I do not contemplate any material change in thegeneral construction run to supply the ovens through manholes in thetops thereof. It is also common to build two or more parallel series ofovens, two railway-tracks being employed for the cars which supply thetwo series of ovens. I have borne these general conditions in mind whenorganizing steam-boilers adapted for coke-ovens of the usualconstruction and arrangement.

Each oven has a fire-brick lining A and an outer stone wall or casing B.The intervals .between the fire-brick and the casing may be filled withmaterial B of any desired kind. Each oven has a manhole O and a door -D.

JACOB B. BEAM, OF BIGRUN, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO Withineach manhole I arrange an annular means of a multiple series ofwater-tubes G,

which while quite close to the fire-brick walls of the oven are notincontact therewith; but

suflicient space is left between them andthefire-brick to allow theproducts of combustion to circulate around them, and thus heat them to ahigh temperature. Most of the tubes G extend directly from the upperdrum E to the lower drum F; but at the door I provide special pipes H,which extend around the edge of the door and which are connected withthe upper drum E by means of shorter watertubes G. In order to providefor the generation of more steam, I may employa third annular waterchamber or drum I, preferably located about midway between the upper andlower drums and connected to the lower water-drum by water-tubes t' andto the upper drum by water-tubes t.

The arrangement,

however, is such that a free space is left within the center of theoven, so that coal introduced through the manhole may pass freelythrough all the Water chambers or drums E, I, and F.

The steam-dome J preferably consists of a large horizontally-arrangedpipe located between the two tracks K and L. Of course if only oneseries of ovens is used the steamdrum would be located to one side ofthe track. Each steam-dru m E is connected with the steam-dome J bymeans of pipes M m. Each pipe M is provided with a valve m, by means ofwhich communication between the steam-dome and the boiler may be openedand closed. The dome is preferably supported at a slight elevation bymeans of standards N of suitable construction, and one or moresafety-valves 0 may be employed in the steam-dome wherever needed.

Each upper water-chamber E is connected with a corresponding inner orlower waterchamber F by means of a pipe P, which provides for the propercirculation of water within the water chambers and tubes, and each ofsaid pipes P is connected with a common pipe Q, running along the seriesor battery of ovens in the manner indicated in Fig. 1. Each of saidpipes P is provided with a valve R, by means of which communication maybe shut off between said pipe P and the pipe Q. Each pipe P is providedwith a water-gage and steam-gage S of usual construction. In order tosupply the boilers with water, I employ a water-supply pipe T, which isconnected by means of branch pipes 15 with injectors U, and eachinjector is connected by means of a pipe V with the steam-dome. Theinjector is provided with suitable valves u 21?. If the valve R of anyboiler is closed, the injector may be operated in a well-known manner tocause water to be drawn from the supply-pipe T and forced into the lowerwaterchamber F and thence to the other waterchambers and water tubes.One injector may, however, be employed for filling all the boilers byleaving the valves all open. This maybe done when the boilers are all onsubstantially the same level. If they are not, separate injectors shouldbe operated for filling the boilers.

The several water chambers and pipes may be constructed in sections andcoupled together in well-known ways.

While the arrangement of water tubes shown in the drawings is preferred,the arrangement may be somewhat varied without departing from myinvention. The central or middle water-chamber I and the pipes t' t" maybe omitted, if desired, and a larger number of circulating-pipes P may,if preferred, be employed. Additional safety-valves may be used, ifrequired, and blow-off cocks WV may be used to relieve the boilers whenit is desired so to do.

I claim as my invention- 1. The combination with a coke-oven providedwith walls of masonry and having a manhole at the top, an annularWELLOP-GhZIIH' ber let down into the manhole and having a free passagethrough it for the products of combustion, a steam -dome connected withsaid annular chamber, an annular waterchamber within the oven above thefloor on which the fuel is supported, water-tubes within the ovenconnecting the water-chamber at the manhole with the water-chamberwithin the oven, and a pipe outside the oven connect ing thetwo-water-chambers, substantially as described.

2. The combination of a coke-oven provided with walls of masonry andhaving a manhole at the top, an annular water-chamber let down into themanhole, and surrounded by the Walls thereof, a steam-dome outside theoven connected with the annular water-chamber, an annular water-chamberwithin the oven, water-tubes Within the oven connecting said twowater-chambers, a pipe outside the oven connecting said chambers, awater-supply pipe, T, an injector with which it is connected,connections between the injector and the steam-dome, and connectionsbetween the injector and the outside connecting-pipe between theWater-chambers within the oven.

3. The combination of a coke-oven provided with walls of masonry andhaving a manhole at the top, an annular water-chamber surrounding themanhole, a steam-dome outside the oven connected with this chamber, anannular water-chamber within the oven, pipes extending around the frontdoor of the oven, water-tubes connecting said pipes with the annularchamber at the manhole, and other pipes within the oven connecting theannular chamber at the manhole with said annular chamber within theoven.

4. The combination of a coke-oven formed with walls of masonry andhaving a manhole at the top, an annular water-chamber let down into themanhole, a steam-dome connected with this chamber, an annularwaterchamber within the oven, water-tubes within the oven connecting thewater-chamber at the manhole with the water-chamber Within the oven, apipe outside the oven connecting the annular chamber at the manhole withthe annular chamber within the oven, another oven similarly providedwith Water-chambers and watertubes, a water-supply pipe connected withthe water-chambers of one of said upper and lower ones, said tubesand'ohambers inclosing an unobstructed space.

. 6. The combination of a coke-oven formed with walls of masonry andhaving a manhole at the top, an annular I water-chamber let down intothe manhole, a steam-dome connected with this chamber, an annularwaterchamber near the bottom of the oven, but arranged above the floorthereof on which the fuel is supported, water-tubes connecting these twowater-chambers, but lying close to the walls of the oven, a thirdwater-chamber of less diameter than that at the bottom of the oven andlocated between said bottom water-chamber and the one at the manhole,and water-tubes connecting this middle chamber with the upper and lowerones, there being a free space inclosed by the three waterchambers andthe tubes for the passage of fuel through the manhole to the bottom ofthe oven.

In testimony whereof I have hereunto subscribed my name.

JACOB B. BEAM.

Witnesses:

HENRY, J. WILSON, HENRY J. BEAM.

